Publications of the Research Institute for Mathematical Sciences

A Class of Extremal Positive Maps in $3 \times 3$ Matrix Algebras

Hiroyuki Osaka

Published Oct 31, 1992• 37 citations

Abstract

We shall provide a large class of extremal positive maps in M_3(\mathbf C) which are neither 2-positive nor 2-copositive and study the algebraic structure of the set of all positive linear maps in M_3(\mathbf C) .

DOI: 10.2977/prims/1195167934

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